Jean paban



J. PABAN. FUSE FQR HAND GRENADES AND OTHER EXRLOSIVE ENGINES APPLICATIONFILED 0CT.20, 1917.

Patented Sept. 9, 1919.

THE coLuMnlA PLANOnRAPII cm, WASHINGTON, n. c.

I the detonator.

J EAN IPABAN, OF ST.-OUEN, FRANCE.

FUSE FOR HAND-GRENADES AND OTHER, EXPLOSIVE-ENGINES.

Specification of Letters Patent.

Patented Sept. 9, 1919.

Application filed October 20, 1917. Serial No. 197,601. i

To all whom it may concern:

Be it known that I, JEAN PABAN, a citizen of the Republic of France,residing at St.-Ouen, Seine Department, No. 27 Rue Lieutades, in theRepublic of France, mechanical engineer, have invented certain new anduseful Improvements in and Relating to Fuses for Hand-Grenades and otherExplosive-Engines, of which the following is a specification.

In certain kinds of hand grenades used at present, the fuse comprises atubular body that is adapted to be fixed in the eye of the grenade, andthat incloses a slow combustion fuse cord designed to transmit the fireor the igniting device which is situated at its outer end to thedetonator which is situated at its inner end.

Up to the present, the fuse cord has been simply slipped in the bore ofthe tubular body, and it has been connected to the detonator by a fixingjoint which is not perfectly tight. This construction has the drawbackthat sometimes it is the cause of a premature explosion of the grenade,with the consequent occurrence of accidents, generally because theburning gases given off by the percussion cap or by the first portionsof the fuse cord, penetrate between the lat ter and the wall thatsurrounds it as far as Sometimes, also, the fuse cord is forced forwardby the explosion of the percussion cap, and is thereby projected intothe detonator and thus causes its premature detonation.

The present invention has now for its object to avoid that drawback andto this end it consists essentially in forming the tubular fuse body bycasting a suitable material, such as for instance, a readily fusiblemetal or alloy, lead, 620., directly around the fuse cord. By this meansnot only is there be- Gopies of this patent may be obtained for tweenthe fuse cord and.the wall surrounding the latter, no intersticewhatever which could allow the burning gases to pass through, but inaddition the fuse cord is absolutely fixed in place thereby andtherefore cannot be projected into the detonator.

In the accompanying drawings which are appended by way of example Figure1 shows a fuse body in which a Bickford fuse cord is simply slipped inthe usual manner, and

Fig. 2 shows a fuse body of the same shape made by casting it around thefuse cord, the latter having itself served as the core in the mold thathas been used for casting. It is to be understood that this invention isapplicable to all kinds of explosive engines comprising a fuse cord.

Having now particularly described and ascertained the nature of my saidinvention and in what manner the same is to be performed I declare thatwhat I claim is 1. The process of making the body of a fuse and aiiixingit to the fuse cord which it is to inclose, which process consists incasting the material that is to constitute the said body, directlyaround and upon the said fuse cord. i

2. A fuse for a grenade or other like explosive engine of the typecomprising a fuse cord and a body inclosing the said fuse cord, whereinthe said body is cast directly around and upon the said fuse cord insuch a manner as to make intimate contact and a tight joint with thesurface of the said fuse cord.

In testimony that I claim the foregoing as my invention I have signed myname in presence of two subscribing witnesses.

JEAN PABAN.

Witnesses:

CHARLES BAUDRY, OHAs. P. PREssLY.

five cents each, by addressing the Commissioner of Patents,

Washington, D. G.

